Properties of the Number 87391

Eighty-Seven Thousand Three Hundred Ninety-One

Basics

Value: 87390 → 87391 → 87392

Parity: odd

Prime: No

Previous Prime: 87383

Next Prime: 87403

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 281 × 311

Divisors: 1, 281, 311, 87391

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101010101011111

Octal: 252537

Duodecimal: 426A7

Hexadecimal: 1555f

Square: 7637186881

Square Root: 295.61968811295367

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Sequence of pairwise relatively prime numbers of class P₇ (see comment in A275246). A275252

Number of (n+1) X (2+1) 0..2 arrays with no element unequal to a strict majority of its horizontal, diagonal and antidiagonal neighbors, with values 0..2 introduced in row major order. A231390

a(1) = 11; a(n+1) is the least prime formed by adding one or more digits to the digit reversal of a(n). A87391

Number of length n+6 0..3 arrays with at most one downstep in every n consecutive neighbor pairs. A258736